Abdullahi, I., Anyaegbu, P. and Aliagbor, D. 2014. Effects of Moringa oleifera LAM, Leguminous Plants and NPK Fertilizer Comparatively on Orange Fleshed Sweet Potato in Alley Cropping System. International Journal of Environment. 3, 3 (Sep. 2014), 24–35. DOI:https://doi.org/10.3126/ije.v3i3.11061.